Theodore wenk



(No Model.)

T. WENK. 'SHAGKLE WIRE FOR SEALS.

No. 434,219. Patented Aug. 12, 1890.

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UNITED STATES PATENT OFFICE.

THEODORE WENK, OF BROOKLYN, ASSIGNOR TO E. J. BROOKS & COMPANY, OF NEWV YORK, N. Y.

SHACKLE-WIRE FO'R SEALS.

SPECIFICATION forming part of Letters Patent No. 434,219, dated August 12, 1890.

Application filed January 26, 1886. Serial No. 189,827. (No model.)

To all whom it may concern.-

Be itknown that I, THEODORE WENK, a citizen of the United States, residing at Brooklyn, in the State of New York, have invented a new and useful Improvement in Shackle- Wires for Seals, of which the following is a specification.

This invention relates to shackles for that class of seals which have seal-disks of soft metal within which one or both ends of the shackle are secured by compressing the disk in a sealpress. It relates to that class of shackles which are made of single wire, and it is more particularly an improvement on the invention of Edward J. Brooks, set forth and claimed in Patent No. 192,735, dated July 3, 1877.

The present invention consists in shackles of round wire provided with certain peculiarly-formed bent-up anchoring projec tions or stops adaptedto resist with superior eificiency the withdrawal of the anchored shackle ends afterthe seal is pressed, and in a novel and simple method of forming the preferred type of said stops and other bentup anchoring projections, as hereinafter set forth.

A sheet of drawings bearing eighteen figures accompanies this specification as a part thereof.

Figure 1 of the drawings is an elevation of a partly-formed shackle. Fig. 2 is an elevation of the same finished and looped, and Figs. 3 and 4 are magnified detail views of one end thereof, illustrating this invention. Figs. 5 to 8, inclusive, and Figs. 9 to 12, inclusive, are like series of views representing two modifications. Figs. 13 and 14 are elevations of another shackle end, on the same scale as Figs. 3 and 4, showing its anchoring enlargments, respectively, partly formed and finished. Figs. 15 and 16 are asimilar pair of views of another shackle end, and Figs. 17 and 18 are respectively large and small scale views of another shackle end representing a last modification.

Like letters of reference indicate corresponding parts of the respective shackles in the several figures.

In carrying out this invention I produce a shackle A or A or A or A or A or A, of single round wire, which may be of a small gage, provided at one or both ends with bentup anchoring projections or stops .9 or s or 8 or s or 8 01's. on both ends of each shackle, as shown in Figs. 2, 6, and 10, and a short distance from each extremity of the wire, asrepresented. After passing the shackles through a pair of car-door staples C, Fig. 2, or otherwise applying the seals, the free ends are threaded through or introduced into soft-metal sealdisks D, Figs. 2 and 14, which are then solidified around such ends in the seal-press in customary manner, whereupon their said anchoring-stops operate to preclude the withdrawal of the wire without breaking it. One end of each shackle may preferably be made fast in the seal-disk preliminarily, as by casting the disk thereon. o

The typical species of my shackle is A Figs. 13 and 14. Its anchoring-stops s 'project at right angles to the length of the wire to any required extent, so as to secure absolutely safe anchoragesthat is to say, to insure a resistance to withdrawal exceeding the tensile strength of the wire.

The shackle A, Figs. 17 and 18, has stops 3, which are substantially similar to said stops 8 in construction and mode of operation. They are not, however, produced in the same manner apart from being bent up, and g the method of producing said stops 8 forms no part of my present invention.

The method of forming said stops 8 is common to all except said stops s and is as follows: The annealed wire is bent back and forth around staggered pins in open fakes, varying in number and arrangement according to the form of stop that is to be pro- 0 duced, and'assumes at the end of this operation the appearance represented by Figs. 1,

5, 9, 13, or 15, as the case may be. Its bends are now simply compressed by pressure substantially at right angles or perpendicular to 5 the sides of the bends, as illustrated by arrows in Figs. 1, 5, 9, 13, and 15, so as to close them and properly distribute them,when the shackle assumes the finished form represented by Figs.

3, 7, 11, 14, or 16. This method may be carried These are preferably formed 55 out by means of hand-tools or automatic machinery, and the number and proportions of the bends may vary without departing from this invention.

An important advantage of the method is its adaptation to produce stops of any desired number of added thicknesses from two up, or of any required length of bend where length is effective, as illustrated by the drawings.

I am aware of the fiat wire shackles with bent-up stops shown in Patent No. 298,665, dated May 13, 1884, and hereby disclaim the same as forming no part of my invention. Their only stops are adjusting-stops, which coact with the upper edge of the seal-disk. My stops are anchoringstops inclosed within the seal-disk, as illustrated in Figs. 2 and let. Moreover, my invention is confined to round wire, the bends of which close up differently from like bends in flat wire, as illustrated by Figs. 4, S, and 12.

I am also aware of the bent-up anchoringenlargelnents set forth in Patent No. 278,866, dated June 5, 1883, and disclaim them as forming no part of my invention. Such enlargements are readily formed and are in practice produced by coiling the wire to form a single circular loop and then compressing such loop, as set forth at lines 4 to 7, page 2, of the specification of said patent. By my dilferent process other and different and particularlylarger and more prominent anchoring-enlargcmonts are produced, as shown by my drawings.

Having thus described my said improvement in shackle-wires for seals, I claim as my invention and desire to patent under this specification 1. A shackle-wire for seals, composed of single round wire having bent-up anchoringstops with their sides at or substantially at right angles to the length of the wire, substantially as herein specified.

2. The within-described method of making shackle-wires of single round Wire yvith bentup anchoring-stops-namely, first bending the annealed wire in open fakes, and, secondly, closing and properly disposing its bonds by compressing them by pressure substantially perpendicular to their sides, for the purposes set forth.

THEODORE EN K.

Witnesses:

E. S. INNET, W. A. BLANEY. 

